How to use the num2words.lang_EN_GB.Num2Word_EN_GB function in num2words

from __future__ import print_function, unicode_literals

from .lang_EN import Num2Word_EN


class Num2Word_EN_GB(Num2Word_EN):
    def to_currency(self, val, longval=True, **kwargs):
        if 'currency' in kwargs:
            return self._to_currency(val, **kwargs)

        return self.to_splitnum(val, hightxt="pound/s", lowtxt="pence",
                                jointxt="and", longval=longval)


n2w = Num2Word_EN_GB()
to_card = n2w.to_cardinal
to_ord = n2w.to_ordinal
to_ordnum = n2w.to_ordinal_num
to_year = n2w.to_year


def main():
    for val in [1, 11, 12, 21, 31, 33, 71, 80, 81, 91, 99, 100, 101, 102, 155,
                180, 300, 308, 832, 1000, 1001, 1061, 1100, 1500, 1701, 3000,
                8280, 8291, 150000, 500000, 1000000, 2000000, 2000001,
                -21212121211221211111, -2.121212, -1.0000100]:
        n2w.test(val)
    n2w.test(13253254360678768017687001076010010122121321432104732075403270573)
    for val in [1, 120, 1000, 1120, 1800, 1976, 2000, 2010, 2099, 2171]:
        print(val, "is", n2w.to_currency(val))
        print(val, "is", n2w.to_year(val))

# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301 USA

from __future__ import unicode_literals
from .lang_EN_GB import Num2Word_EN_GB

class Num2Word_EN_GB_old(Num2Word_EN_GB):
    def base_setup(self):
        sclass = super(Num2Word_EN_GB, self)
        self.set_high_numwords = sclass.set_high_numwords
        sclass.base_setup()


n2w = Num2Word_EN_GB_old()
to_card = n2w.to_cardinal
to_ord = n2w.to_ordinal
to_ordnum = n2w.to_ordinal_num

def main():
    for val in [ 1, 11, 12, 21, 31, 33, 71, 80, 81, 91, 99, 100, 101, 102, 155,
             180, 300, 308, 832, 1000, 1001, 1061, 1100, 1500, 1701, 3000,
             8280, 8291, 150000, 500000, 1000000, 2000000, 2000001,
             -21212121211221211111, -2.121212, -1.0000100]:

def base_setup(self):
        sclass = super(Num2Word_EN_GB, self)
        self.set_high_numwords = sclass.set_high_numwords
        sclass.base_setup()